Oblicz:
a) 3x-5y+(12x+4y)=
b) -(2a-2b)-3(2a+3b) =
a)
3x - 5y +12x +4y = 15x -y
b)
-2a+2b -6a -9b = -8a-7b
a) 3x-5y+(12x+4y)=3x-5y+12x+4y=15x-y
b) -(2a-2b)-3(2a+3b) =-2a+2b-6a-9b=-8a-7b
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a)
3x - 5y +12x +4y = 15x -y
b)
-2a+2b -6a -9b = -8a-7b
a) 3x-5y+(12x+4y)=3x-5y+12x+4y=15x-y
b) -(2a-2b)-3(2a+3b) =-2a+2b-6a-9b=-8a-7b